2017 Chevrolet Suburban AC Isn't Working

Common Causes of AC Failure in Your 2017 Chevrolet Suburban and How to Fix Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
37% chance it's the
Refrigerant Leak
0%
21% chance it's the
Climate Control Electrical Issue
0%
12% chance it's the
AC Compressor
0%
30% chance it's
Something else
The most common reasons a 2017 Chevrolet Suburban AC isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.
  • Refrigerant Leak: A refrigerant leak can occur due to damaged hoses, seals, or connections, resulting in decreased cooling efficiency in the air conditioning system.
  • Climate Control Electrical Issue: A faulty climate control module or a blown fuse could be causing the electrical issues in the climate control system.
  • AC Compressor: A faulty AC compressor may be due to a lack of lubrication, electrical issues, or internal mechanical failure, resulting in inadequate cooling performance.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial diagnostic steps to take when the AC isn't working in a 2017 Chevrolet Suburban?

When your 2017 Chevrolet Suburban's AC isn't functioning properly, start by checking the thermostat settings to ensure they are correctly adjusted. A simple misconfiguration can often be the culprit behind inadequate cooling. Next, inspect the air filters; if they are dirty or clogged, replacing them can significantly improve airflow and system performance. It's also crucial to examine the refrigerant levels, as low levels can lead to warm air blowing from the vents. If you suspect a refrigerant issue, consider having a professional recharge the system. Additionally, look for any visible leaks in the AC system, as these can indicate a loss of refrigerant that needs addressing. Testing the compressor is another vital step; it should engage when the AC is activated, and any malfunction may require repair or replacement. Lastly, check the electrical connections related to the AC system for any signs of damage or looseness, as faulty connections can hinder the system's operation. By systematically following these steps, you can effectively diagnose and potentially resolve the AC issues in your Suburban.

What are the common problems that could cause the AC to stop working in a 2017 Chevrolet Suburban?

When the air conditioning system in your 2017 Chevrolet Suburban fails to cool, it can be frustrating, but understanding the common problems can help you diagnose the issue effectively. One of the primary culprits is low refrigerant levels, which can occur due to leaks or insufficient charging, leading to inadequate cooling. Another frequent issue is a faulty compressor; if the compressor isn't functioning properly, it won't circulate the refrigerant effectively, resulting in a lack of cool air. Additionally, electrical problems such as blown fuses, malfunctioning relays, or damaged wiring can disrupt the AC's operation, preventing it from working altogether. Clogged or leaking condensers can also hinder the system's performance, as they are essential for dissipating heat from the refrigerant. Lastly, a malfunctioning blower motor can significantly reduce airflow from the vents, making it feel like the AC isn't working even if the system is operational. By identifying these common issues, you can take the first steps toward troubleshooting and potentially repairing your vehicle's AC system.

How urgent is it to address the AC failure in a 2017 Chevrolet Suburban?

When dealing with an AC failure in your 2017 Chevrolet Suburban, it is crucial to recognize the urgency of the situation. A malfunctioning air conditioning system not only compromises your comfort during hot weather but can also lead to a less enjoyable driving experience for both you and your passengers. Ignoring the problem may result in further complications, such as increased wear on other vehicle components or even more severe mechanical issues that could jeopardize your vehicle's performance and safety. Additionally, the longer you wait to address the AC failure, the higher the likelihood of incurring more expensive repairs down the line. Therefore, it is advisable to take immediate action to diagnose and resolve the AC issue, ensuring a safe and pleasant driving environment.

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